How Git works

1. Create a "repository" with hosting tool (GitHub)

Note: Use Github for creating repository - https://github.com/nidhisht/MyFirstRepository

2. Clone (copy) repository to your local machine

$git init
$git clone https://github.com/nidhisht/MyFirstRepository

3. Add a file to local repository and "commit" (save) changes

$git commit -a

4. "Push" your changes to master branch

$git push

5. Change the file in hosting tool and "commit"

6. "Pull" changes to your local machine

$git pull

Reference: https://www.atlassian.com/git

Example:
git init
git clone https://github.com/nidhisht/SampleRepository.git
git add .
git commit -m "first commit"
git push origin master